Polish mathematicians and Alan Turing's British team made some Enigma traffic readable, but decryption was only part of the intelligence return. German confidence in the machine encouraged extensive transmission, creating patterns that analysts could exploit before a message was broken. A sudden rise in traffic could warn of an offensive, while signal volume and power helped distinguish a major headquarters from a small local command. Encryption could obscure message content; it could not conceal the existence, location, or rhythm of the communications system.
Notable Point · 2:40:20-2:42:23
What Enigma traffic revealed before a message was decoded
High-volume, high-power German radio use exposed headquarters, force activity, and offensive preparations even when the cipher text remained unread.